CN214577772U

CN214577772U - Mechanical seal leakage testing tool for high-speed centrifugal pump

Info

Publication number: CN214577772U
Application number: CN202120300354.3U
Authority: CN
Inventors: 徐军刚
Original assignee: Hebei Hangshun Technology Co ltd
Current assignee: Hebei Hangshun Technology Co ltd
Priority date: 2021-02-03
Filing date: 2021-02-03
Publication date: 2021-11-02
Anticipated expiration: 2031-02-03

Abstract

The utility model discloses a high-speed centrifugal pump mechanical seal leakage testing tool, which belongs to the technical field of centrifugal pump leakage testing, and comprises a base, wherein the outer surface of the upper end of the base is provided with a motor, the outer surface of one side of the motor is provided with a bearing seat and a sealing part, the bearing seat is positioned on one side of the sealing part, the other side of the sealing part is provided with a back cover and an impeller, the back cover is positioned on one side of the impeller, the other side of the impeller is provided with a weighing base, the sealing detection is carried out according to the weight loss condition of a pump body, the leakage testing structure of the sealing part is arranged, the effective leakage testing is carried out according to the expansion degree of an inner membrane body and the dry humidity of a built-in card, and the temperature and the humidity of two sides of the pump body are effectively measured by two groups of intelligent thermometers through the arranged pump body measuring section, according to the temperature difference and the humidity difference of the two sides, leakage test detection is carried out, and better use experience is brought.

Description

Mechanical seal leakage testing tool for high-speed centrifugal pump

Technical Field

The utility model relates to a centrifugal pump leak test technical field, more specifically says, relates to high-speed centrifugal pump mechanical seal leak test instrument.

Background

The mechanical seal is a device for preventing fluid leakage, which is composed of at least one pair of end faces perpendicular to the rotation axis, and which keeps fit and relative sliding under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism and the cooperation of the auxiliary seal, and the reasons for the leakage of the mechanical seal of the centrifugal pump are roughly classified into the following types: problems occur to the moving ring of the mechanical seal, wearing parts are worn, the pump shaft is bent, the moving ring or the static ring of the mechanical seal is damaged, and the spring has problems.

When the existing high-speed centrifugal pump mechanical seal leakage testing tool is used, the leakage testing difficulty between each part of a pump body and a mechanical seal part is large, and a leakage testing tool with good leakage testing effect between each part and a connecting piece needs to be arranged aiming at the existing problems.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

Problem to exist among the prior art, the utility model aims to provide a high-speed centrifugal pump mechanical seal leakage test instrument, but possess the weighing base through the setting, it weighs to effectively measure the top pump body, test the pump body through utilizing the fluid, according to the weight loss condition of the pump body, seal and detect, seal part leakage test structure through the setting, utilize the protecting film to carry out leakage test detection to sealing bolt, effectively leak test detection is carried out according to the inflation degree of the inside membrane body and the dry humidity of built-in card, measure the section through the pump body that sets up, utilize two sets of intelligent thermometers, effectively measure the both sides humiture of the pump body, according to both sides difference in temperature and humidity difference, the advantage that detects leaks test, the problem that the leakage test degree of difficulty is big between each part of the pump body and mechanical seal has been solved.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

High-speed centrifugal pump mechanical seal leakage testing instrument, including the base, the upper end surface of base is provided with the motor, one side surface of motor is provided with bearing frame, sealing member, the bearing frame is located one side of sealing member, sealing member's opposite side is provided with back lid, impeller, the back lid is located one side of impeller, the opposite side of impeller is provided with the pump body, one side surface of the pump body is provided with the outlet flange.

Preferably, the inside of base is provided with weighing mechanism, digital display mechanism, weighing mechanism is located one side of digital display mechanism, sealing part's upper end surface is provided with sealing bolt, sealed upper cover, sealing bolt is located one side of sealed upper cover, the upper end surface of sealed upper cover is provided with bolt sleeve, protecting film, bolt sleeve is located one side of protecting film.

Preferably, one side surface of the pump body is provided with a first measuring section and a second measuring section, the first measuring section is located on one side of the second measuring section, one side surface of the first measuring section is provided with a fastening ring, and the fastening ring is located on one side surface of the second measuring section.

Preferably, the base is fixedly connected, the motor is detachably connected with the bearing seat, the sealing part, the rear cover and the impeller, and the pump body is detachably connected with the outlet flange.

Preferably, the base is electrically connected with the weighing mechanism and the digital display mechanism, the sealing upper cover is fixedly connected with the sealing part through a sealing bolt and a bolt sleeve, and the sealing part is detachably connected with the protective film.

Preferably, the first measuring section and the second measuring section are fixedly connected with each part through a fastening ring.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) this scheme is through the base of weighing that sets up, utilize built-in weighing machine to construct, it weighs to effectively measure the top pump body, carry out intelligent record and demonstration through digital display mechanism, test the pump body through utilizing the fluid, according to the weight loss condition of the pump body, seal the contrast and detect, carry out the leak test when dispatching from the factory and detect, can effectively reduce the maintenance rate of returning the factory, seal part leak test structure through setting up, through the sealed upper cover that sets up, carry out sealing connection to seal part, fix sealing bolt through the bolt sleeve, cover the top at seal part and bolt with the protecting film, it has a slice protecting film to independently cover on every sealing bolt, carry out effective leak test according to the inflation degree of the protective film body of top and the dry humidity of the internal card of membrane and detect.

(2) This scheme is through the pump body measuring section that sets up, can dismantle with the pump body through the tight loop and be connected, utilizes two sets of built-in intelligent thermometers and humidity response piece, effectively measures the both sides humiture of the pump body, when maintaining and maintenance inspection, can carry out the leak test according to both sides temperature difference and humidity difference, detects, and the cooperation manometer uses, detects the leak test efficiently, and the precision is good.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the weighing and leak testing structure of the base of the present invention;

FIG. 3 is a schematic view of the leakage test structure of the sealing member of the present invention;

FIG. 4 is a schematic view of the temperature measurement and leak test structure of the pump body of the present invention;

the reference numbers in the figures illustrate:

1. a base; 101. a weighing mechanism; 102. a digital display mechanism; 2. a motor; 3. a bearing seat; 4. a sealing member; 401. a seal bolt; 402. sealing the upper cover; 403. a bolt bushing; 404. a protective film; 5. a rear cover; 6. an impeller; 7. a pump body; 701. a first measurement segment; 702. a second measurement segment; 703. a fastening ring; 8. an outlet flange.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, a mechanical seal leakage test tool of a high-speed centrifugal pump comprises a base 1, a motor 2 is arranged on the outer surface of the upper end of the base 1, a bearing seat 3 and a sealing part 4 are arranged on the outer surface of one side of the motor 2, the bearing seat 3 is positioned on one side of the sealing part 4, a rear cover 5 and an impeller 6 are arranged on the other side of the sealing part 4, the rear cover 5 is positioned on one side of the impeller 6, a pump body 7 is arranged on the other side of the impeller 6, an outlet flange 8 is arranged on the outer surface of one side of the pump body 7, and effective leakage test can be performed on the main components and the sealing connection part of the centrifugal pump through a weighing base 1, a protective film 404 of the sealing part 4 and temperature measurement equipment of the pump body 7, so that the quality of products is further improved.

Further, the inside of base 1 is provided with weighing mechanism 101, digital display mechanism 102, weighing mechanism 101 is located one side of digital display mechanism 102, the upper end surface of seal part 4 is provided with sealing bolt 401, sealing upper cover 402, sealing bolt 401 is located one side of sealing upper cover 402, the upper end surface of sealing upper cover 402 is provided with bolt sleeve 403, protecting film 404, bolt sleeve 403 is located one side of protecting film 404, but through the weighing base 1 who sets up, utilize built-in weighing mechanism 101, effectively measure the weighing to the top pump body 7, carry out intelligent record and demonstration through digital display mechanism 102, test the pump body 7 through utilizing the fluid, according to the weight loss condition of pump, carry out the contrast with original weight and detect, screen out and reveal the pump, carry out the test leak detection when dispatching from the factory, can effectively reduce the maintenance rate of returning to the factory.

Further, one side surface of the pump body 7 is provided with a first measurement section 701, a second measurement section 702, the first measurement section 701 is located one side of the second measurement section 702, one side surface of the first measurement section 701 is provided with a fastening ring 703, the fastening ring 703 is located one side surface of the second measurement section 702, through the pump body 7 measurement section that sets up, utilize intelligent thermometer, carry out temperature and humidity detection to the both sides of the pump body 7, according to temperature and humidity difference, carry out the leak hunting, effectively reduce the side leakage scope, promote the side leakage efficiency.

Further, base 1 is fixed connection, motor 2 and bearing frame 3, sealing member 4, back lid 5, impeller 6 are for dismantling to be connected, and pump body 7 is for dismantling to be connected with outlet flange 8, and the section is measured through the pump body 7 that sets up, when carrying out the leakage test to pump body 7, can detect the operation service temperature of pump, is convenient for carry out timely maintenance and change to the sealing connecting piece in high temperature region, reduces the accelerated ageing that the high temperature leads to, reduces to reveal the emergence.

Further, base 1 and weighing mechanism 101, digital display mechanism 102 is electric connection, sealed upper cover 402 passes through sealing bolt 401, bolt sleeve 403 carries out fixed connection with sealing element 4, sealing element 4 is connected for dismantling with protective film 404, cover protective film 404 in sealing element 4 and sealing bolt 401's top, it has a slice protective film 404 to independently cover on every sealing bolt 401, carry out effective leakage test according to the inflation degree of the protective film 404 body in the top and the dry humidity of the built-in card of the membrane body and detect, visual effectual, and can seal the reinforcement to sealing element 4 junction, reduce and reveal the emergence.

Further, first measurement section 701, second measurement section 702 carry out fixed connection through tight loop 703 and each part, and tight loop 703 carries out fixed connection through both sides sealing rubber strip for can dismantling the circle, and is high with pump body 7 laminating degree, can further promote the humiture measurement precision.

The working principle is as follows: the utility model comprises a base 1, a weighing mechanism 101, a digital display mechanism 102, a motor 2, a bearing seat 3, a sealing part 4, a sealing bolt 401, a sealing upper cover 402, a bolt sleeve 403, a protective film 404, a rear cover 5, an impeller 6, a pump body 7, a first measuring section 701, a second measuring section 702, a fastening ring 703, an outlet flange 8 and other parts, firstly, the pump body 7 is weighed integrally and effectively recorded, the built-in weighing mechanism 101 is utilized to effectively measure and weigh the upper pump body 7 through the arranged weighing base 1, intelligent recording and display are carried out through the digital display mechanism 102, the pump body 7 is tested through fluid, according to the weight loss condition of the pump body 7, weight comparison detection is carried out, a leakage pump is screened out, leakage test detection is carried out when leaving factory, the factory maintenance rate can be effectively reduced, through the leakage test structure of the set sealing part 4, the sealing part 4 is hermetically connected through the arranged upper sealing cover 402, the sealing bolts 401 are fixed through the bolt sleeves 403, the protective film 404 is covered above the sealing part 4 and the bolts, each sealing bolt 401 is independently covered with one protective film 404, effective leakage test is carried out according to the expansion degree of the upper protective film 404 and the dryness and humidity of the card arranged in the film body, the pump body 7 is detachably connected with the pump body 7 through the fastening ring 703 through the arranged measuring section of the pump body 7, the temperature and humidity on two sides of the pump body 7 are effectively measured by utilizing two groups of built-in intelligent thermometers and humidity induction blocks, during maintenance and maintenance inspection, leakage test can be carried out according to the temperature difference and the humidity difference on the two sides, the leakage test is used by matching with a pressure gauge, the leakage test efficiency is high, the accuracy is good, generally speaking, the leakage between the shaft with the outward extending shaft sleeve and between the sealing end cover and the pump body 7 is easy to find and solve, however, careful observation is needed, particularly when the working medium is liquefied gas or high-pressure, toxic and harmful gas, it is relatively difficult, and the rest leaks are difficult to distinguish and judge visually, and the correct conclusion can be obtained only by observing, analyzing and studying the leakage symptoms on the basis of long-term management and maintenance practice, and the leakage test efficiency of the pump body 7 can be effectively improved by the arranged method for testing leakage of the weighing, temperature and humidity and the protective film 404, so that better use experience is brought.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. High-speed centrifugal pump mechanical seal leakage testing instrument, including base (1), its characterized in that: the utility model discloses a pump, including base (1), motor (2), one side surface of motor (2) is provided with bearing frame (3), sealing member (4), bearing frame (3) are located one side of sealing member (4), the opposite side of sealing member (4) is provided with back lid (5), impeller (6), back lid (5) are located one side of impeller (6), the opposite side of impeller (6) is provided with pump body (7), one side surface of pump body (7) is provided with outlet flange (8).

2. The high-speed centrifugal pump mechanical seal leakage testing tool of claim 1, characterized in that: the inside of base (1) is provided with weighing mechanism (101), digital display mechanism (102), weighing mechanism (101) is located one side of digital display mechanism (102), the upper end surface of seal part (4) is provided with sealing bolt (401), sealed upper cover (402), sealing bolt (401) is located one side of sealed upper cover (402), the upper end surface of sealed upper cover (402) is provided with bolt sleeve (403), protecting film (404), bolt sleeve (403) is located one side of protecting film (404).

3. The high-speed centrifugal pump mechanical seal leakage testing tool of claim 1, characterized in that: the outer surface of one side of the pump body (7) is provided with a first measuring section (701) and a second measuring section (702), the first measuring section (701) is located on one side of the second measuring section (702), the outer surface of one side of the first measuring section (701) is provided with a fastening ring (703), and the fastening ring (703) is located on the outer surface of one side of the second measuring section (702).

4. The high-speed centrifugal pump mechanical seal leakage testing tool of claim 1, characterized in that: the base (1) is fixedly connected, the motor (2) is detachably connected with the bearing seat (3), the sealing part (4), the rear cover (5) and the impeller (6), and the pump body (7) is detachably connected with the outlet flange (8).

5. The high-speed centrifugal pump mechanical seal leakage testing tool of claim 2, wherein: the base (1) is electrically connected with the weighing mechanism (101) and the digital display mechanism (102), the sealing upper cover (402) is fixedly connected with the sealing part (4) through the sealing bolt (401) and the bolt sleeve (403), and the sealing part (4) is detachably connected with the protective film (404).

6. The high-speed centrifugal pump mechanical seal leakage testing tool of claim 3, wherein: the first measuring section (701) and the second measuring section (702) are fixedly connected with each part through a fastening ring (703).